//
//  WBVisitorView.swift
//  tom微博
//
//  Created by tom king on 2017/8/20.
//  Copyright © 2017年 tom king. All rights reserved.
//

import UIKit

// 访客视图
class WBVisitorView: UIView {
    
    /// 注册按钮
    lazy var registerButton: UIButton = UIButton.cz_textButton(
        "注册", fontSize: 16,
        normalColor: UIColor.orange,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    
    /// 登录按钮
    lazy var loginButton: UIButton = UIButton.cz_textButton(
        "登录", fontSize: 16,
        normalColor: UIColor.darkGray,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    
    /// MARK: - 设置访客视图信息 [imageName / message]
    /// 提示：如果是首页 imageName = ""
    var visitorInfo: [String: String]? {
        didSet{
            // 取字典
            guard let imageName = visitorInfo?["imageName"], let message = visitorInfo?["message"] else {
                return
            }
            // 设置信息
            tipLabel.text = message
            
            // 设置图像 首页不需要设置
            if imageName == "" {
                startAnimation()
                return
            }
            iconView.image = UIImage(named: imageName)
            
            // 其他控制器的访客视图不需要显示 小房子 和 遮罩视图
            houseIconView.isHidden = true
            maskIconView.isHidden = true
        }
        
    }
    
    // 构造函数
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    /// 旋转图标动画（首页）
    private func startAnimation() {
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        
        anim.toValue = 2 * Double.pi
        anim.repeatCount = MAXFLOAT
        anim.duration = 20
        
        // 动画完成不删除，如果 iconView 被释放 动画也会一起销毁
        // 在设置连续播放的动画非常有用
        anim.isRemovedOnCompletion = false
        
        // 将动画添加到视图层
        iconView.layer.add(anim, forKey: nil)
        
    }
    
    // MARK: - 私有控件
    /// 懒加载属性只有调用 UIKit 控件的指定构造函数， 其他都需要使用类型
    /// 图像视图
     lazy var iconView: UIImageView = UIImageView(image: UIImage(named:
        "visitordiscover_feed_image_smallicon"))
    
    // 遮罩图像 - 不能用maskView
    lazy var maskIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    
    /// 小房子
     lazy var houseIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    
    /// 提示标签
     lazy var tipLabel: UILabel = UILabel.cz_label(withText: "关注一些人，回这里看看有什么惊喜关注一些人，回这里看看有什么惊喜", fontSize: 14, color: UIColor.darkGray)
    
   

}


// MARK: - 设置界面
extension WBVisitorView {
    func setupUI(){
        backgroundColor = UIColor.cz_color(withRed: 237, green: 237, blue: 237)
        
        // 1、添加控件
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(loginButton)
        addSubview(houseIconView)
        addSubview(tipLabel)
        addSubview(registerButton)
        
        // 设置文本居中
        tipLabel.textAlignment = .center
        
        
        // 2、取消 aotoresizing
        for v in subviews {
            v.translatesAutoresizingMaskIntoConstraints = false
        }
        // 3、自动布局
        let margin:CGFloat = 20.0
        // 图标
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: iconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: self,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: -50))
        // 小房子
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: houseIconView,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerY,
                                         multiplier: 1.0,
                                         constant: 0))
        // 提示标签
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 236))
        // 注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .left,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .left,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))
        // 登录按钮
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .right,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .right,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: registerButton,
                                         attribute: .width,
                                         multiplier: 1.0,
                                         constant: 0))
        // 遮罩图像
        let viewDict = ["maskIconView": maskIconView, "registerButton": registerButton] as [String : Any]
        let metrics = ["spacing": 20]
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-0-[maskIconView]-0-|",
                                                      options: [],
                                                      metrics: nil,
                                                      views: viewDict))
        addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-0-[maskIconView]-(spacing)-[registerButton]",
                                                      options: [],
                                                      metrics: metrics,
                                                      views: viewDict))



    }
}
